MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
PSI Software SE,
MAC address prefix 00:05:DB is registered to PSI Software SE,, located at Ostring 6Karlsruhe 76131DE.
This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses
The prefix was initially registered on 04 June 2001, with the most recent update made on 12 December 2025.
OUI: 00:05:DB
Vendor name: PSI Software SE,
Address:
Assignment Type MA-L Ostring 6
Karlsruhe 76131
DE.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Last updated: 12 December 2025
Initial registration: 04 June 2001
